Worms came from a family of rabbis and was destined for a rabbinical career. He received his early education from his father, Abraham Aberle, and afterwards was sent to Metz, the nearest city having a rabbinical college. This institution was directed by Chief Rabbi
Loeb Günzburg (known by this main work, ''Sha'agat Aryeh''), with whom Aaron gained such high favor that at the early age of fifteen he was allowed to deliver a lecture on a subject in the synagogue of Metz. Through Günzburg's instrumentality, he was appointed in 1777 to the rabbinate of Kriechingen in
German Lorraine. Having lived in that town for seven years, he returned to Metz, where, after the death of Günzburg on June 23, 1785, Aaron was chosen principal of the rabbinical college. For many years he officiated as associate rabbi and deputy chief rabbi, and on June 12, 1832, was unanimously elected chief rabbi. The government confirmed his election, although he had not mastered French as required by the law regulating the appointment of rabbis. Four years later he died, revered and beloved by both Orthodox and Progressive Jews. Aaron was so conservative in his views that even in his practical life he did not acquire a thorough knowledge of the language of his country, and still regarded the
Zohar as a sacred book and as the composition of
Simeon ben Yoḥai. Nevertheless, he gave expression to opinions that in some measure prepared the way for Jewish reforms. Aaron's son-in-law was
Yehuda Meir Lambert, who succeeded him as Chief Rabbi of
Metz and opened a
rabbinic school in the city and was a fierce opponent against
Reform Judaism. So greatly was Worms influenced by the
French Revolution that he even dressed himself in the uniform of the National Guard and, to accord with military regulation, removed his beard. Aaron fully realized that the Jews, in receiving rights, had also duties to fulfil; and in a sermon preached during the Revolutionary period, he strongly rebuked the Jews for their aversion to handicrafts, and, as an example for them, apprenticed his son Elijah to an artisan. As a member of the
Grand Sanhedrin convened by Napoleon, he delivered an impressive address on the "Relations of the Jews to Non-Jews according to Rabbinic Law," in which he demonstrated that the Talmudic opinions concerning the heathen should not be used as guides in the regulation of practical life under the conditions that existed then. Again, in purely Jewish affairs, in questions concerning rites and ceremonies, he showed himself remarkably broad-minded. Upon the occasion of his taking the oath as chief rabbi, administered by the government officials, his hat was handed him to cover himself. He refused it with a smile, saying: "God does not wish to impose upon us the duty of approaching Him bareheaded; but if we do so voluntarily, so much the better!" This cannot be regarded simply as a bon mot; for he did not hesitate publicly to declare himself in accord with the reform tendencies which were then beginning to force their way into the synagogue. ==Reform tendencies==